Hi,
I am using a tabbed pane and open images in tabs. I want to disable a comonent after i find all the tabs of the tabbed pane closed and when all the tabs are closed the tab pane should also be closed.

Good point. I suspect you can't avoid evaluation of the list here (because the tab pane itself needs to evaluate it anyway, and I suspect the call to isEmpty() will force evaluation anyway), but in general that may be better practice.